用OCTA图像同时预测心血管风险和血管状态,精度超现有方法。
VAMPIRE: Uncovering Vessel Directional and Morphological Information from OCTA Images for Cardiovascular Disease Risk Factor Prediction
- 基于Mamba架构提取血管走向特征,结合形态学增强模块。
- 在OCTA-CVD数据集上实现高精度风险与血管条件联合预测。
- 首个面向心血管评估的OCTA专用数据集,适合临床研究者使用。
心血管疾病(CVD)是全球主要死因,亟需高效的无创风险评估方法。现有技术多依赖眼底照相和光学相干断层成像(OCT),难以捕捉关键血管特征,而光学相干断层血管成像(OCTA)可提供更精细信息。然而,当前方法仅能区分高低风险,缺乏对相关血液因子状况的深入分析,限制了预测准确性和临床应用。为此,我们提出一种多任务评估范式,联合预测CVD风险与相关血管状态,贴合临床实际。基于此,构建了首个用于CVD风险评估的OCTA数据集OCTA-CVD,以及基于OCTA平面图像的血管感知Mamba模型——VAMPIRE。该模型包含两个核心组件:(1) 基于Mamba的方向性(MBD)模块,捕捉精细血管轨迹特征;(2) 信息增强型形态学(IEM)模块,融合全面的血管形态知识。实验表明,本方法优于标准分类骨干网络、OCTA检测方法及眼科基础模型。代码与数据集已开源。
原文摘要 · Abstract (English)
Cardiovascular disease (CVD) remains the leading cause of death worldwide, requiring urgent development of effective risk assessment methods for timely intervention. While current research has introduced non-invasive and efficient approaches to predict CVD risk from retinal imaging with deep learning models, the commonly used fundus photographs and Optical Coherence Tomography (OCT) fail to capture detailed vascular features critical for CVD assessment compared with OCT angiography (OCTA) images. Moreover, existing methods typically classify CVD risk only as high or low, without providing a deeper analysis on CVD-related blood factor conditions, thus limiting prediction accuracy and clinical utility. As a result, we propose a novel multi-purpose paradigm of CVD risk assessment that jointly performs CVD risk and CVD-related condition prediction, aligning with clinical experiences. Based on this core idea, we introduce OCTA-CVD, the first OCTA dataset for CVD risk assessment, and a Vessel-Aware Mamba-based Prediction model with Informative Enhancement (VAMPIRE) based on OCTA enface images. Our proposed model aims to extract crucial vascular characteristics through two key components: (1) a Mamba-Based Directional (MBD) Module that captures fine-grained vascular trajectory features and (2) an Information-Enhanced Morphological (IEM) Module that incorporates comprehensive vessel morphology knowledge. Experimental results demonstrate that our method can surpass standard classification backbones, OCTA-based detection methods, and ophthalmologic foundation models. Our codes and the collected OCTA-CVD dataset are available at https://github.com/xmed-lab/VAMPIRE.
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